SMA HM-20 User Manual

12 Load Control
SMA Solar Technology AG
Operating manual 71HM-20-BE-en-19
As soon as this load has been added to your SunnyHomeManager system and configured once, you do not need to
make any further settings.
12.1.2 Communicating with Loads
To have loads captured and controlled by the SunnyHomeManager, you must establish a connection between the
load and SunnyHomeManager:
• Via radio-controlled sockets/relays as intermediate switches (not directly communicating loads)
– Capturing the energy consumption of individual home appliances: measuring function of the assigned radio-
controlled socket
– Controlling household appliances: on/off function of the assigned device
• Via the standard protocol interfaces (directly communicating loads)
Measuring and switching
If a load is connected to the SunnyHomeManager via a switching device with a measuring function, e.g., a radio-
controlled socket, this can measure the energy consumption of the connected load and transmit it to the
SunnyHomeManager. For this purpose, the switching device must be assigned to the SunnyHomeManager system.
A radio-controlled socket cannot be used to measure the load's power consumption if it is controlled using a relay or
contactor.
The SunnyHomeManager system can switch loads connected to the switching device on and off.
If a load is not assigned to a switching device, the SunnyHomeManager does not receive consumption data from this
load and it cannot control this load (see Section12.4.8, page83).
A load can either be permanently connected to the same switching device or to alternate switching devices. For each
change, the load must be assigned to the new switching device.
Since the SunnyHomeManager does not receive any detailed data on loads if they are controlled via switching
devices, you will need to make additional settings in the load profiles depending on the respective load type (see
Section12.4.2, page80). Thus, the SunnyHomeManager can effectively schedule the loads and help save energy
and costs.
Direct communication of devices using data exchange protocols
This connection option is only possible for smart appliances which communicate with the SunnyHomeManager via a
data exchange protocol such as EEBus or SEMP (see Section12.6, page87).
Since the load transmits all information about its energy demand and consumption directly to the
SunnyHomeManager and exchanges this information with it automatically, you cannot configure a directly
communicating load yourself.
An exception are loads that are able to absorb optional energy. With these, the priority and rules for switching on
when optional power is actually requested can be set. The settings are already made when you add the device to your
SunnyHomeManager system via the configuration wizard (see Section11.6.1, page65).
12.1.3 Controlling Loads via a Time Period
You can configure time periods for loads that communicate with the SunnyHome Managervia a switching device.
Within these time periods, the SunnyHomeManager automatically switches loads on and off. You cannot make any
settings in SunnyPortal for loads that communicate directly. All necessary information can be exchanged directly if the
directly communicating load has been configured according to the manufacturer's specifications.
The configuration differentiates between the following types of time periods:
• Load MUST be switched on
• Load CAN be switched on

SMA HM-20 Specifications

General

Brand	SMA
Model	HM-20
Category	Measuring Instruments
Language	English